Essential Studio® for Document Processing - v31.2.15 Release Notes

v31.2.15
November 25, 2025
Test Results: 224920 Success , 0 Failure

PDF Library

.NET PDF Library

Bug Fixes

  • I784466 - Resolved an exception that occurred while flattening form fields in PDF documents.
  • I783129 - Resolved a preservation issue during XPS-to-PDF conversion.
  • I774887 - Resolved an issue causing incorrect text extraction splits due to small spacing thresholds between glyphs.
  • I783167 - Resolved an issue where the redaction process caused the application to hang for specific input documents.
  • I781048 - Resolved an issue where media controls were not added for Rich Media annotations in PDF documents.

Flutter PDF Library

Bug Fixes

  • GH2459 - Resolved an issue where the time zone sign and the offset value were incorrect for negative offset time zones in the PdfSignature dictionary.

Word Library

.NET Word Library

Bug Fixes

  • I782248, I779956, I782247 - Table column width is now preserved properly while converting DOCX document to PDF.
  • I787498 - Auto spacing is now applied properly between DBC and English characters during RTF conversion.
  • I785555 - Shape without style attribute is now preserved properly while resaving DOCX document.
  • I779838 - Image size is now preserved properly while converting DOCX to RTF format document.
  • I784745 - Text is now preserved properly while converting RTF to DOCX format document.
  • I781265 - Hanging issue will no longer thrown due to text wrapping tabs while converting Word document to PDF.

Excel Library

.NET Excel Library

Bug Fixes

  • #I781955 - Exception is no longer thrown when accessing IRange.GetDependents after cloning a sheet.
  • #I779958 - Opening an Excel document containing VML shapes no longer throws XML exception when parsing VML shapes with HTML elements.
  • #I782141 - The FILTER function copied to another sheet when inserting a row in the data range is now working properly.
  • #I778451 - No exception occurs when opening an XLSB file with number formats.
  • #I781159 - Display text is preserved properly when the number format has decimal precision.
  • #I783491 - Alignment of the cross-symbol in the chart is converted properly in Excel to PDF conversion.

PDF Viewer

Web PDF Viewer (Javascript, Angular, React, Vue, ASP.NET Core & MVC)

Bug Fixes

  • #I783067 - Resolved an issue where page became unresponsive when findTextAsync was executed for non-existent words.
  • #I783922 - Resolved an issue where programmatically updating the isChecked property for a checkbox field did not work on non-rendered pages.
  • #I780028 - Resolved an issue where the last added reply was missing after exporting the sticky note annotations.
  • #I783430 - Resolved an issue where form fields were not visible when opening a PDF document with exactly 100 pages.
  • #I779883 - Fixed a script error that occurred after completing measurement annotations with the provided document.
  • #I782204 - Fixed an issue where annotation property sliders were hidden when toolbarSettings was applied.

Blazor PDF Viewer

Bug Fixes

  • #I775862 -Resolved an issue where an annotation was deleted when pressing the Delete or Backspace key inside the comment panel editor of the PDF Viewer.
  • #I70547 -Resolved an issue where resizing a Dynamic Stamp annotation to a smaller size caused its content to be cropped after reloading the saved document in the PDF Viewer.

DOCX Editor

Web DOCX Editor (Javascript, Angular, React, Vue, ASP.NET Core & MVC)

Bug Fixes

#I779496 - Fixed a script error that occurred when deleting content inside a table cell.
#I773785 - Resolved an issue where inline editing did not work for Date or Number form fields.
#I777100 - Resolved an issue where updating a checkbox form field did not navigate to the corresponding position.
#I784718 - Fixed issues with the spell check “Ignore” and “Ignore All” actions.
#I760621 - Fixed an issue when viewing HTML documents in the Document Editor.

Blazor DOCX Editor

Bug Fixes

#I779496 - Fixed a script error that occurred when deleting content inside a table cell.
#I773785 - Resolved an issue where inline editing did not work for Date or Number form fields.
#I784718 - Fixed issues with the spell check “Ignore” and “Ignore All” actions.
#I760621 - Fixed an issue when viewing HTML documents in the Document Editor.

Spreadsheet Editor

Blazor Spreadsheet Editor

Bug Fixes

  • #I788334 - The Spreadsheet now properly fits to its parent container when the component height is set as a percentage.

Test Results

Component Name Platform Test Cases Passed Failed Remarks
Calculate Windows Forms 137 137 0 All Passed
Calculate WPF 9 9 0 All Passed
DOCX Editor(Document Editor) Blazor 1944 1944 0 All Passed
DOCX Editor(Document Editor) Web(Javascript, Angular, React, Vue, ASP.NET Core & MVC) 5009 5009 0 All Passed
Excel Library(XlsIO) .NET 37757 37757 0 All Passed
Metafilerenderer .NET 863 863 0 All Passed
Pdf Library(Pdf) .NET 14724 14724 0 All Passed
Pdf Viewer Web(Javascript, Angular, React, Vue, ASP.NET Core & MVC) 19140 19140 0 All Passed
PdfViewer WPF 2998 2998 0 All Passed
PdfViewer Windows Forms 207 207 0 All Passed
PowerPoint Library .NET 54401 54401 0 All Passed
SfPdfViewer .NETMAUI 14684 14684 0 All Passed
SfPdfViewer2 Blazor 13155 13155 0 All Passed
SfSpreadsheet WPF 2710 2710 0 All Passed
Spreadsheet Blazor 2780 2780 0 All Passed
Spreadsheet Web(Javascript, Angular, React, Vue, ASP.NET Core & MVC) 10411 10411 0 All Passed
Word Library(DocIO) .NET 39912 39912 0 All Passed
Word Library(DocIO) Java 4079 4079 0 All Passed